Home / 877,220.20-1,314,809.70-403,953.40

Finding the Fourth Proportional to 877,220.20, 1,314,809.70 and 403,953.40

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Solution

The fourth proportional to 877,220.20, 1,314,809.70 and 403,953.40 is: 605,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,220.20 : 1,314,809.70 = 403,953.40 : x
  2. Step 2: Convert to fraction form
    877,220.20/1,314,809.70 = 403,953.40/x
  3. Step 3: Cross multiply
    877,220.20x = 1,314,809.70 × 403,953.40
  4. Step 4: Simplify right side
    877,220.20x = 531,121,848,667.98
  5. Step 5: Solve for x
    x = 531,121,848,667.98/877,220.20
  6. Step 6: Final answer
    x = 605,460.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.